Raspberry Pi: Linux

1. The "find" utility command is helpful in system administration. Read the man page for "find". Then write a "find" command in a unix shell command that will locate ALL files with their setuid (suid) bit set on your linux OS installation. How many such files are there? [Submit command and numeric answer (not the output list of the files).]

2. Consider the problem of finding files that are not useful anymore. What is the option to ls that shows when a file has last been accessed?

3. Using the man pages for "ls", "sort", and "head" as references, write a one-line script to list the details of the five largest files in the current directory. NOTE: You can NOT use the "-S" option of "ls" command.